Hand Held Products IT4000, Руководство по интеграции

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IMAGETEAM™ 4X00 Series Integration Manual 3 - 5
Using this method, the host system can be placed to sleep for greater periods of time early in the acquisition. The back end
method also requires that a minimum of 5 LDEs occur between the mid point of the frame capture and the vertical interrupt. The
image acquisition layer requires this from the host system for proper re-allocation of the frame buffers and to prepare to write the
next exposure values.
A T A $
# )
C N Y S 6
C N Y S (
T
) 6
5 %
) 6 ) 6
5 % 5 %
VI = Vertical Hardware Interrupt
EU = Exposure Update
A minimum of 5
events is required
between mid frame
and the vertical
interrupt.
Back End
Weighted
Equal Interval
Line
Data
Event